Sim kard pins

Isang kompleto nga gadya alang sa RJ-11, RJ-14, RJ-25, RJ-48, ug RJ-9 connectors ngadto sa diagrama nga may color code ug teknikal nga pagdeskripsyon. RJ-48 – E1 ug T1 Plug (8P8C) Uri sa Connector: 8P8C (8 posisyon, 8 konduktor) Kolor Code: Orange, Green, Blue, Brown, White, Black Paggamit: Gisangpot sa digital nga telekomunikasyon para sa T1/E1 lines sa carrier networks ug PBX systems. Mga Pin Function: Kada pair (1–2, 3–4, 5–6, 7–8) nagdadala og hiwalay nga tip ug ring signal para sa high-speed data o voice channels. Standard: ANSI/TIA-568-B RJ-25 – 6P6C Plug Uri sa Connector: 6P6C (6 posisyon, 6 konduktor) Kolor Code: White, Black, Red, Green, Yellow, Blue Paggamit: Ginuhit aron mopuyde ang multi-line telephone systems na suportahan og hangtod sa tulo ka independent phone lines. Mga Pin Function: Ang pairs (1–2), (3–4), ug (5–6) kada usa nagdadala og hiwalay nga line (Tip/Ring). Paggamit: Makita kini sa business telephony ug legacy PBX installations. RJ-14 – 6P4C Plug Uri sa Connector: 6P4C (6 posisyon, 4 konduktor) Kolor Code: White, Black, Red, Green Paggamit: Gisangpot aron mopuyde ang dual-line residential o office telephones. Mga Pin Function: Ang Pins 1–2 para sa Line 1 (Tip/Ring), Pins 3–4 para sa Line 2 (Tip/Ring). Note: Compatible sa standard RJ-11 jacks kung gamiton lamang ang usa ka line. RJ-11 – 6P2C Plug Uri sa Connector: 6P2C (6 posisyon, 2 konduktor) Kolor Code: White, Red Paggamit: Ang pinaka common nga connector para sa single-line analog telephone service sa kalibutan. Mga Pin Function: Pin 1 = Tip (T), Pin 2 = Ring (R) – nagdadala sa voice signal ug power para sa phone. Compatibility: Malapitan nang gamiton sa home phones, fax machines, ug modems. RJ-9 – 4P4C Plug (Sa loob sa Handset) Uri sa Connector: 4P4C (4 posisyon, 4 konduktor) Kolor Code: Black, Red, Green, Yellow Paggamit: Nagkonekta sa handset sa telephone base, nagdadala sa microphone ug speaker signals. Mga Pin Function: Pin 1 (Black): Ground / MIC return Pin 2 (Red): Microphone (MIC) Pin 3 (Green): Speaker (SPKR) Pin 4 (Yellow): Ground / SPKR return Internal Circuit: Kasagaran adunay ~500Ω resistor tali sa MIC ug SPKR aron maprevent ang feedback oscillation.

Kompletong Gabay sa USB 2.0, 3.0, ug 3.1 (USB-C) Connectors "Komprehensibong diagrama sa pinout ug teknikal nga pagdeskripsyon para sa tanang pangunahon nga tipo sa USB connector, kasagaran ang Standard-A, B, Mini, Micro, ug USB-C." Kini nga web-based nga reference naghatag og detalyadong breakdown sa USB connector pin configurations , signal functions, voltage levels, ug color coding sa dili pa molabay nga henerasyon: USB 2.0, USB 3.0, ug USB 3.1 (Type-C) . Tanang impormasyon gi-follow ang opisyal nga specifications gikan sa USB Implementers Forum (USB-IF) . Ideal para sa mga inhenyero, teknisyano, hobbyists, ug magtutumong nga naggamit og embedded systems, DIY electronics, o device repair. Ano ang USB? Universal Serial Bus (USB) usa ka standardize nga interface para mokonekta ang mga peripherals sa computers ug mobile devices. Iya suporta: Data transfer Power delivery (hangtod sa 240W sa USB PD) Device charging Hot-swapping Ang kada bersion sa USB mag-introduce og bag-ong features: USB 2.0 : Hangtod sa 480 Mbps USB 3.0 : Hangtod sa 5 Gbps USB 3.1 Gen 2 : Hangtod sa 10 Gbps USB 3.2 / USB4 : Hangtod sa 40 Gbps Ang pisikal nga connectors naglakip sa iba't ibang tipo ug henerasyon, apan tanan naa sa strict pin assignments. USB Connector Types Overview Connector Pins Use Case USB 2.0 A/B 4 pins Hosts, printers, keyboards Mini/Micro USB 2.0 5 pins Lumang phones, cameras USB 3.0 A/B 9/11 pins High-speed data, external drives Micro USB 3.0 10 pins Smartphones, tablets USB 3.1 C (USB-C) 24 pins Reversible, high-power, fast data Note: Ang USB-C suporta ang reversibility , dual-role operation , ug Power Delivery (PD) . USB 2.0 – Standard A & B Connectors Standard A: Standard B: ┌─────────┐ ┌─────────┐ │ 4 3 2 1 │ │ 1 2 │ └─────────┘ └─────────┘ ↑ ↑ Plug View Plug View Pin Configuration (4-Pin) Pin Signal Color Code Function 1 VCC (+5V) Red Power supply (hangtod sa 500mA) 2 Data - (D-) White Differential data pair (-) 3 Data + (D+) Green Differential data pair (+) 4 Ground Black Signal and power return Full-duplex communication using differential signaling No ESD protection on host side? Use TVS diodes! Mini/Micro USB 2.0 – Standard A & B Standard A: Standard B: ┌───────┐ ┌───────┐ │ 1 2 3 4 5 │ │ 1 2 3 4 5 │ └───────┘ └───────┘ Pin Configuration (5-Pin) Pin Signal Function 1 VCC (+5V) Power supply 2 Data - (D-) USB 2.0 data negative 3 Data + (D+) USB 2.0 data positive 4 None Host detection: connected to ground in hosts, open in devices 5 Ground Common ground Pin 4 enables automatic detection of host vs. slave Used in older smartphones, GPS units, and digital cameras USB 3.0 – Standard A & B Connectors USB 3.0 A (9-Pin) Plug View: ┌─────────────┐ │ 5 6 7 8 9 │ │ 4 3 2 1 │ └─────────────┘ Pin Signal Function 1 VCC (+5V) Power supply 2 D- USB 2.0 data negative 3 D+ USB 2.0 data positive 4 GND Power ground 5 RX2- USB 3.0 receive line (-) 6 RX2+ USB 3.0 receive line (+) 7 GND Signal ground 8 TX2- USB 3.0 transmit line (-) 9 TX2+ USB 3.0 transmit line (+) Backward compatible with USB 2.0 Speed: Up to 5 Gbps (SuperSpeed) USB 3.0 B (11-Pin) Plug View: ┌─────────────┐ │ 9 8 7 6 5 │ │ 10 11 │ │ 4 3 │ └─────────────┘ Pin Signal Function 1 VCC (+5V) Power supply 2 D- USB 2.0 data negative 3 D+ USB 2.0 data positive 4 GND Power ground 5 TX2- USB 3.0 transmit line (-) 6 TX2+ USB 3.0 transmit line (+) 7 GND Signal ground 8 RX2- USB 3.0 receive line (-) 9 RX2+ USB 3.0 receive line (+) 10 DPWR Power provided by device (e.g., bus-powered hub) 11 GND Return for DPWR Rarely used; replaced by USB-C in modern devices Micro USB 3.0 (10-Pin) Plug View: ┌─────────────────────┐ │ 1 0 9 8 7 6 │ │ 5 4 3 2 1 │ └─────────────────────┘ Pin Signal Function 1 VCC (+5V) Power supply 2 D- USB 2.0 data negative 3 D+ USB 2.0 data positive 4 ID OTG identification (host/device role) 5 GND Power ground 6 TX2- USB 3.0 transmit line (-) 7 TX2+ USB 3.0 transmit line (+) 8 GND Signal ground 9 RX2- USB 3.0 receive line (-) 10 RX2+ USB 3.0 receive line (+) Used in early smartphones and tablets before USB-C adoption Supports On-The-Go (OTG) mode USB 3.1 Type-C (24-Pin) – Reversible Connector Plug View (Top Side): ┌────────────────────────────┐ │ 1 2 3 4 5 6 7 8 9 10 11 12 │ └────────────────────────────┘ │ 13 14 15 16 17 18 19 20 21 22 23 24 │ └────────────────────────────┘ Pin Configuration (24-Pin) Pin Signal Function 1 GND (A1) Ground 2 TX1+ (A2) SuperSpeed transmit (+) 3 TX1- (A3) SuperSpeed transmit (-) 4 Vbus (A4) +5V power supply 5 CC1 (A5) Configuration Channel (detects orientation, power roles) 6 D+ (A6) USB 2.0 data positive 7 D- (A7) USB 2.0 data negative 8 SBU1 (A8) Sideband use (for video/audio, alternate modes) 9 Vbus (A9) +5V power supply (second path) 10 RX2- (A10) SuperSpeed receive (-) 11 RX2+ (A11) SuperSpeed receive (+) 12 GND (A12) Ground 13 GND (B12) Ground (symmetric side) 14 RX1+ (B11) SuperSpeed receive (+) 15 RX1- (B10) SuperSpeed receive (-) 16 Vbus (B9) +5V power supply 17 SBU2 (B8) Sideband use 18 D- (B7) USB 2.0 data negative 19 D+ (B6) USB 2.0 data positive 20 CC2 (B5) Configuration Channel (backup) 21 Vbus (B4) +5V power supply 22 TX2- (B3) SuperSpeed transmit (-) 23 TX2+ (B2) SuperSpeed transmit (+) 24 GND (B1) Ground Fully reversible plug Dual-role data flow (host/device) Supports USB Power Delivery (up to 240W) Supports DisplayPort and HDMI via Alternate Mode Design Tips for Engineers Always route D+/D- as differential pairs with controlled impedance (~90Ω) Keep Vbus trace short and wide for better current handling Use TVS diodes on D+/D- lines for ESD protection Add pull-up resistors on CC pins for proper negotiation Follow USB-IF compliance guidelines for certification Standards Compliance USB 2.0 : USB-IF Specification 2.0 USB 3.0 : USB 3.0 Specification (Rev. 1.0) USB 3.1 : USB 3.1 Specification (Rev. 1.0) USB-C : USB Type-C Specification (Rev. 2.1) All modern devices must comply with these standards for interoperability.